在iOS应用中启用本地数据存储后，默认ACL已开始崩溃：
Parse.setApplicationId(kParseApplicationId, clientKey: kParseClientId)
Parse.enableLocalDatastore() // Although docs say this call should be before setApplicationId call(), doing it causes exception
PFUser.enableAutomaticUser()
PFUser.currentUser().saveEventually()
var defaultACL = PFACL()
defaultACL.setPublicReadAccess(true)
PFACL.setDefaultACL(defaultACL, withAccessForCurrentUser:true) // This line causes crash!
任何想法可能会发生什么？
崩溃日志附于下方：
2014-12-20 16:42:07.762 inventoryapp[75258:1857255] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'cannot setReadAccess for unsaved user'
*** First throw call stack:
(
0 CoreFoundation 0x000000010c8b9f35 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010cf4ebb7 objc_exception_throw + 45
2 CoreFoundation 0x000000010c8b9e6d +[NSException raise:format:] + 205
3 inventoryapp 0x0000000109418fee -[PFACL setReadAccess:forUser:] + 160
4 inventoryapp 0x00000001094195f9 +[PFACL defaultACL] + 279
5 inventoryapp 0x000000010943a553 -[PFObject(Private) setDefaultValues] + 50
6 inventoryapp 0x000000010942f6b1 -[PFObject(Private) init] + 686
7 inventoryapp 0x0000000109204421 _TFC12inventoryapp6ClientcfMS0_FT_S0_ + 49
8 inventoryapp 0x0000000109204462 _TFC12inventoryapp6ClientCfMS0_FT_S0_ + 50
9 inventoryapp 0x000000010921372f _TFC12inventoryapp23AddEditClientControllercfMS0_FT5coderCSo7NSCoder_S0_ + 111
10 inventoryapp 0x000000010921385d _TToFC12inventoryapp23AddEditClientControllercfMS0_FT5coderCSo7NSCoder_S0_ + 45
11 UIKit 0x000000010b5d09dd -[UIClassSwapper initWithCoder:] + 205
12 UIKit 0x000000010b7356c6 UINibDecoderDecodeObjectForValue + 705
13 UIKit 0x000000010b7353fc -[UINibDecoder decodeObjectForKey:] + 276
14 UIKit 0x000000010b5d05d6 -[UIRuntimeConnection initWithCoder:] + 153
15 UIKit 0x000000010b5d0c69 -[UIRuntimeEventConnection initWithCoder:] + 45
16 UIKit 0x000000010b7356c6 UINibDecoderDecodeObjectForValue + 705
17 UIKit 0x000000010b735895 UINibDecoderDecodeObjectForValue + 1168
18 UIKit 0x000000010b7353fc -[UINibDecoder decodeObjectForKey:] + 276
19 UIKit 0x000000010b5cfa79 -[UINib instantiateWithOwner:options:] + 990
20 UIKit 0x000000010b859572 -[UIStoryboard instantiateViewControllerWithIdentifier:] + 181
21 UIKit 0x000000010b85c6cc -[UIStoryboardSegueTemplate _perform:] + 71
22 inventoryapp 0x0000000109205330 _TFC12inventoryapp20ViewClientController14viewWillAppearfS0_FSbT_ + 1264
23 inventoryapp 0x00000001092053e1 _TToFC12inventoryapp20ViewClientController14viewWillAppearfS0_FSbT_ + 49
24 UIKit 0x000000010b433821 -[UIViewController _setViewAppearState:isAnimating:] + 487
25 UIKit 0x000000010b453605 -[UINavigationController _startCustomTransition:] + 887
26 UIKit 0x000000010b45f3fe -[UINavigationController _startDeferredTransitionIfNeeded:] + 386
27 UIKit 0x000000010b45ff47 -[UINavigationController __viewWillLayoutSubviews] + 43
28 UIKit 0x000000010b5a5509 -[UILayoutContainerView layoutSubviews] + 202
29 UIKit 0x000000010b383973 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 521
30 QuartzCore 0x000000010b017de8 -[CALayer layoutSublayers] + 150 31 QuartzCore 0x000000010b00ca0e _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
32 QuartzCore 0x000000010b00c87e _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
33 QuartzCore 0x000000010af7a63e _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
34 QuartzCore 0x000000010af7b74a _ZN2CA11Transaction6commitEv + 390
35 QuartzCore 0x000000010af7bdb5 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 89
36 CoreFoundation 0x000000010c7eedc7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
37 CoreFoundation 0x000000010c7eed20 __CFRunLoopDoObservers + 368
38 CoreFoundation 0x000000010c7e4b53 __CFRunLoopRun + 1123
39 CoreFoundation 0x000000010c7e4486 CFRunLoopRunSpecific + 470
40 GraphicsServices 0x000000010ef789f0 GSEventRunModal + 161
41 UIKit 0x000000010b30a420 UIApplicationMain + 1282
42 inventoryapp 0x00000001091d3dee top_level_code + 78
43 inventoryapp 0x00000001091d3e2a main + 42
44 libdyld.dylib 0x000000010d728145 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
禁用defaultACL代码后，它现在启动正常，但没有与PFUser有关系的对象被保存，我收到以下错误
2014-12-20 17:31:39.377 inventoryapp[76964:1882821] [Error]: {"__type":"Pointer","className":"_User","localId":"local_b570eef90326ed75"} is not a valid Pointer (Code: 106, Version: 1.6.1)
2014-12-20 17:31:39.382 inventoryapp[76964:1882805] [Error]: Failed to run command eventually with error: Error Domain=Parse Code=106 "The operation couldn’t be completed. (Parse error 106.)" UserInfo=0x7f8cb8c9e190 {error={"__type":"Pointer","className":"_User","localId":"local_b570eef90326ed75"} is not a valid Pointer, code=106}
我正在使用Parse SDK 1.6.1
答案 0 :(得分：0)
解析文档说要在setApplicationId之前放置enableLocalDatastore。试一试。
答案 1 :(得分：0)
尝试新的补丁（1.6.1）并查看它是否适合您。
新修补程序还会强制您在初始化之前启用本地数据存储（现在它应该正常工作！）。